Auto Transmission Fluid oil Changer: Driving force: ( Electric) DC12V Small Gasoline Motor Car & Diesel Vehicle Flow direction automatically controlled and equal amount exchange system Oil cycling flow speed monitorChange the oil by the power of gear-box and the exchangerAutomatically shift to oil-extracting function after completed oil exchangingEffectively protect the gear-box and remove the grease and metal fillingsAssure equal amount exchangeDriving force:  ( Electric) DC12VPressure gauge: 0-60PSIWeight:       38KGMeasure:      365*445*940mmScope:   Small Gasoline Motor Car & Diesel Vehicle